rhmap-stats

RedHat Mobile Application system monitoring and stats lib

This lib is tightly related to RHMAP and can only work with RHMAP.

It is based on stats-influxdb lib

Install

npm install --save rhmap-stats

Usage Examples

Monitor system stats

//in RHMAP node.js app:
var stat=require("rhmap-stats");
var session=stat.init({
  host: "myInfluxDb", //influxdb hostname or ip address ,
  port: 4444 //influxdb udp port
});
stat.monit.start(session,"cpu",1000); //monitor vm cpu usage every 1000 ms
stat.monit.start(session,"mem",1000); //monitor vm mem usage every 1000 ms
stat.monit.start(session,"pidusage",1000); //monitor this process mem and cpu usage every 1000 ms
stat.monit.start(session,"disk",3600*1000); //monitor vm disk usage (/) every hour
 

To stop the monitoring

stat.monit.stop(session,"cpu");
stat.monit.stop(session,"mem");

Simple Endpoint counter

//as a middleware of a route
route.use(function(req,res,next){
  session.count("my_endpoint");
  next();
});

Endpoint counter with parameters

route.use(function(req,res,next){
  session.count("user_login", 1,["user="+req.query.userName]);
  next();
});

Time elapse statistics

// monitor database response
var timer = session.time("list_user_collection");
userCollection.find({},function(err,userList){
  session.timeEnd(timer);
});

Time elapse statistics with parameters

// monitor database response
var timer = session.time("list_user_collection", ["user=test"]);
userCollection.find({},function(err,userList){
  session.timeEnd(timer);
});

License

MIT